The tremolo has resurfaced as a cool part of modern heavy rock and roll.

The Rocktron Reaction Tremolo Pedal sounds great as it takes you from surf bum trem to a pulsating heart pounding Staccato tremolo (think death metal). The speed control offers enough range to even produce a machinegun effect, or a low-tech re-sample effect as well. The Reaction Tremolo is a classic asymmetric analog tremolo that uses a photocell for great results.

Rocktron's Reaction Series effects pedals are built into a rugged metal slim form factor chassis, taking up as little space as possible on your pedalboard. The Reaction Tremolo is a true bypass pedal: when you turn it off-it is out of your signal path.

Controls include speed, which controls the speed of the tremolo modulation. Active is the LED which provides visual feedback to help set the speed control.

Tremolo pedals usually sound better when placed after distortion in the signal chain. However, the Rocktron Reaction Tremolo works well either before or after the distortion. Placing the Reaction Tremolo after a distortion while using the Square Wave selection can produce an effect that is dynamically controlled by how hard you attack a chord followed by the decay which the tremolo effect seems to creep up on and overtake-very cool.

If using multiple pedals such as delays and other modulation effects, try the Reaction Tremolo in different parts of the signal chain until you find the sound you like best.

The Reaction Tremolo's footswitch controls On/Off status as shown by the LED indicator. Reaction stomp boxes run on either a 9V alkaline battery, or Rocktron's DC OnTap Universal Power Supply adaptor.

Great sturdy tremolo pedal. True Bypass. Does not color your tone at all. Nothing too complex about it. It does what it's designed to do, and does it well. It does not have a tap tempo or additional waveforms, but it's well worth it for the price. I am definitely pleased.